Site of the World Trade Center
This was once the site of the World Trade Center, which consisted of seven buildings symbolizing the heart of New York finance; they were destroyed in the Sept. 11, 2001, terrorist attacks. The two most prominent and famous buildings were the twin towers. When these towers were originally built, they were the tallest buildings in the world.
Construction of a new World Trade Center, consisting of five new skyscrapers (including Freedom Tower) and other structures is under way and scheduled to be complete in 2015. Among the new buildings will be a permanent memorial and museum dedicated to the nearly 3,000 victims and first responders who died on September 11, 2001 and on February 26, 1993. Additionally, there will be the World Trade Center Transportation Hub, a retail complex, and a performing arts center. Today you can walk around the large city block to see the ongoing construction and experience how massive this site is.
There is also a WTC Visitors Center open 7 days a week nearby (120 Liberty St at the site's south border), where according to the website, "visitors can view exhibits, join walking tours, make donations, and hear personal stories about the events" of 9/11/01 and 02/26/93.
There is also the 9/11 Memorial Preview Site (20 Vesey St), which is open 7 days a week and provides visitors with an overview and current update of the plans and progress of Memorial and Museum that are under construction. On September 11, 2011, the 10th anniversary of the attacks, the 9/11 Memorial will be dedicated in a ceremony for victims's families. The Memorial will open to the public on the following day (September 12, 2011), but given limited space and ongoing construction nearby, members of the public will need to reserve a pass to visit. Please see the 911Memorial website to reserve a pass online or call 212-266-5200 if you have any trouble with the online system.